CVE-2025-49597

low-risk
Published 2025-06-13

handcraftedinthealps goodby-csv is a highly memory efficient, flexible and extendable open-source CSV import/export library. Prior to 1.4.3, goodby-csv could be used as part of a chain of methods that is exploitable when an insecure deserialization vulnerability exists in an application. This so-called "gadget chain" presents no direct threat but is a vector that can be used to achieve remote code execution if the application deserializes untrusted data due to another vulnerability. The problem is patched with Version 1.4.3.

Do I need to act?

~
5.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.9/10 Low
LOCAL / HIGH complexity
23
/ 100
low-risk
Severity 10/34 · Low
Exploitability 8/34 · Low
Exposure 5/34 · Minimal